Home / 1,189,468.90-1,641,446.48-645,593

Finding the Fourth Proportional to 1,189,468.90, 1,641,446.48 and 645,593

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Solution

The fourth proportional to 1,189,468.90, 1,641,446.48 and 645,593 is: 890,907.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,468.90 : 1,641,446.48 = 645,593 : x
  2. Step 2: Convert to fraction form
    1,189,468.90/1,641,446.48 = 645,593/x
  3. Step 3: Cross multiply
    1,189,468.90x = 1,641,446.48 × 645,593
  4. Step 4: Simplify right side
    1,189,468.90x = 1,059,706,357,362.64
  5. Step 5: Solve for x
    x = 1,059,706,357,362.64/1,189,468.90
  6. Step 6: Final answer
    x = 890,907.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.